/*
** Copyright (C) 2010 Calin Radoni
**
** This file is part of CHScanner.
**
** CHScanner is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** CHScanner is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with CHScanner. If not, see <http://www.gnu.org/licenses/>.
*/

#pragma once

#include "ScanMethod.h"
#include "MDHCPInfo.h"

class ScanMethodDHCP : public ScanMethod
{
protected:
	void GenerateRandomMAC(void);
	char GetCharFromByte(BYTE, bool);
	void GenerateRandomName(void);

	virtual int InternalInit(void);
	virtual int InternalExecute(void);

	DWORD transactionId;
	virtual void ComputeRandomValues(void);

	MAddressMAC macAddr;
	CString reqName;
	bool SendDHCPDiscoverPacket(ScanPacket*);
	bool SendDHCPRequestPacket(ScanPacket*, DWORD, DWORD);

	MMachineInfo mach;

	in_addr tempSrvId;
	DWORD   tempLeaseTime;
	bool ParseOptions(DHCPMessage*, int, int);
	virtual void ProcessUdpEx(BYTE*, int, BYTE*);

public:
	ScanMethodDHCP(void);
	~ScanMethodDHCP(void);
};
